[gpfsug-discuss] weird issue when issuing mm commands

[Sven Oehme]

I have seen this with a read-only or full /var/ filesystem before. Could that be the case ?


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   mark.bergman at uphs.upenn.edu --- Re: [gpfsug-discuss] weird issue when issuing mm commands --- 
    From:"" <mark.bergman at uphs.upenn.edu>To:"gpfsug main discussion list" <gpfsug-discuss at spectrumscale.org>Date:Tue, Jan 12, 2016 12:17 PMSubject:Re: [gpfsug-discuss] weird issue when issuing mm commands
  
 In the message dated: Tue, 12 Jan 2016 11:24:18 -0800,
 The pithy ruminations from Yuri L Volobuev on 
 <Re: [gpfsug-discuss] weird issue when issuing mm commands> were:
 => 
 => GPFS code determines the current OS by looking at the output of "uname -s".
 => On a regular Linux node, this command returns "Linux", so check whether you
 
 I saw the same issue on several Scientific Linux release 6.7 machines last
 week.
 
 These machines have been GPFS clients since ~ SL 6.3 & GPFS 3.5.9
 (~3 years). This error never happened previously.
 
 Various 'mm*' commands were returning the "Unknown OS" error. Note that
 there was no OS named at the end of the error message, as if $osName
 was not defined in /usr/lpp/mmfs/bin/mmglobfuncs.
 
 The 'uname -s' command on these nodes does return "Linux" both locally
 and remotely via an ssh connection from a GPFS manager node.
 
 Updating OS distribution packages & rebooting the nodes & rebuilding the
 kernel-specific gpfs.gplbin packge resolved the problem, so I'm not sure
 of the exact cause.
 
 Mark
 
 => see the same, when the command is run locally on the node and through an
 => ssh session. Since mmaddnode has to do some remote processing, make sure
 => ssh works as expected, in particular in the locale setting area.
 => 
 => yuri
 => 
 => 
 => 
 => From: Damir Krstic <damir.krstic at gmail.com>
 => To: gpfsug-discuss at spectrumscale.org,
 => Date: 01/12/2016 06:16 AM
 => Subject: [gpfsug-discuss] weird issue when issuing mm commands
 => Sent by: gpfsug-discuss-bounces at spectrumscale.org
 => 
 => 
 => 
 => I have just deployed a GPU node in our HPC environment and I am having
 => couple of weird issues when trying to add it to our GPFS cluster. mmaddnode
 => command from NSD server returns with: unknown os
 => 
 => mmgetstate on the node itself returns with unknown os
 => 
 => I think I've traced it down to locale issue but reinstalling glibc-common
 => and making sure that /etc/sysconfig/i18n files are in place and OK does not
 => seem to fix the issue. This is on RedHat 6.6
 => 
 => Any help is appreciated.
 => 
 => Thanks,
 => Damir_______________________________________________
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 => 
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